stateInterfaceHelpers.hpp

#ifndef H_EXTENSIONS_CUTEHMI_SERVICES_3_SRC_CUTEHMI_SERVICES_INTERNAL_STATEINTERFACEHELPERS_HPP
#define H_EXTENSIONS_CUTEHMI_SERVICES_3_SRC_CUTEHMI_SERVICES_INTERNAL_STATEINTERFACEHELPERS_HPP
 
#include "internal/common.hpp"
 
#include <QAbstractTransition>
#include <QState>
 
#include <memory>
#include <array>
 
namespace cutehmi {
namespace services {
namespace internal {
 
template<std::size_t N>
QAbstractTransition * getTransition(const std::array<QAbstractTransition *, N> & transitions, int index)
{
    if (index < 0 || static_cast<std::size_t>(index) >= transitions.size()) {
        CUTEHMI_WARNING("There is no transition with index " << index << ".");
        return nullptr;
    }
 
    return transitions[index];
}
 
template<typename T>
void clearTransition(T & stateData, std::size_t index)
{
    if (stateData.transitions[index] != nullptr) {
        if (stateData.persistent)
            stateData.persistent->removeTransition(stateData.transitions[index]);
        stateData.transitions[index]->deleteLater();
        stateData.transitions[index] = nullptr;
    }
}
 
inline
QAbstractTransition * addServiceableTransition(QState * source, QState * target, std::unique_ptr<QAbstractTransition> serviceableTransition, bool unconditionalIfNull = false)
{
    CUTEHMI_ASSERT(source != nullptr, "source state can not be nullptr");
 
    QAbstractTransition * transition = nullptr;
 
    if (serviceableTransition) {
        transition = serviceableTransition.release();
        transition->setTargetState(target);
        source->addTransition(transition);
    } else if (unconditionalIfNull)
        transition = source->addTransition(target);
 
    return transition;
}
 
template<typename T>
void recreateState(T & stateData, const QString & ephemericName)
{
    if (stateData.ephemeric) {
        stateData.ephemeric->setParent(nullptr);
        stateData.ephemeric->deleteLater();
    }
    stateData.ephemeric = new QState(stateData.persistent);
    stateData.ephemeric->setObjectName(ephemericName);
    stateData.persistent->setInitialState(stateData.ephemeric);
}
 
}
}
}
 
#endif
 
//(c)C: Copyright © 2022-2023, Michał Policht <michal@policht.pl>. All rights reserved.
//(c)C: SPDX-License-Identifier: LGPL-3.0-or-later OR MIT
//(c)C: This file is a part of CuteHMI.
//(c)C: CuteHMI is free software: you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
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//(c)C: Additionally, this file is licensed under terms of MIT license as expressed below.
//(c)C: Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
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